1. Professor Dumbledore
   Professor Snape
2. Professor Slughorn
   Fred Weasley

Professor Dumbledore was played by two different actors, but few noticed or cared too much about the actor switch, as this was Harry's go-to man when it came to all of the strange things that had to do with the magical world.

1. Severus Snape
   Dudley
2. Dobby
   Vernon

When you really think about it, Uncle Vernon was one of the most evil characters in the series. Sure, he only wanted a sense of normalcy, but in the end, he was basically the direct opposite of Voldemort, making him just as evil.

1. Ron Weasley
   Draco Malfoy
2. Gellert Grindelwald
   Rubeus Hagrid

Draco Malfoy wasn't born a bad person, he was just born into a bad family. It wasn't his fault that he wanted to impress his dad by being evil and attempting to kill Dumbledore. It was his pride.

1. Professor Flitwick
   Professor Snape
2. Professor Sprout
   Professor Umbridge

What we learn about Severus Snape in the later installments of the series helps us to understand his actions throughout the earlier books and movies. The fact that Harry named his son after Snape shows how the student's attitude about the teacher evolved.

1. Voldemort
   Firenz
2. Professor Umbridge
   Rubeus Hagrid

Delores Umbridge like two things: order and the color pink. She would do anything to ensure that everyone around her listened to her without any interruption ... including scarring them for life with a dark magic quill.

1. Rubeus Hagrid
   Albus Dumbledore
2. James Potter
   Sirius Black

We all know and love Hagrid as the man who first introduced Harry Potter to the wizarding world. Because he was half giant, he was set with the task to bring the giants to the good side of the wizard battle. He did not succeed.

1. Percy
   Fred
2. Ron
   Bill

During the first few movies, we really one hear about Bill Weasley. However, he actually is a member of the Order of the Phoenix and he works at Gringotts wizarding bank as a curse breaker.

1. Neville Longbottom
   Seamus Finnegan
2. Luna Lovegood
   Ginny Weasley

Luna Lovegood is a social outcast throughout the series, but when you look closer at her, she is an exceptional witch with intelligence that rivals Hermione's. It just goes to show that you can't judge a book by its cover, or a Harry Potter character by her eyebrows.

1. Professor Sprout
   Harry Potter
2. Fred Weasley
   Neville Longbottom

We all know Neville as the boy who seemed to always get in trouble, and not from his own doing. He gets set up with a wonky broom and the Cornish pixies attack him. He just can't catch a break.

1. Hermione Granger
   Nymphadora Tonks
2. Luna Lovegood
   Dolores Umbridge

Nymphadora Tonks is one of the coolest characters in the Harry Potter series. She can change her hair and facial features as she pleases ... just don't call her Nymphadora, she hates that.

1. Luna Lovegood
   Remus Lupin
2. Nagini
   Hermione Granger

We know Hermione as Ron's wife and Harry's best friend, but we often forget that both Ron and Harry thought she was a little too cocky for their taste. It wasn't Hermione's fault, though; she just didn't have a lot of social skills.

1. Hermione Granger
   Ginny Weasley
2. Bellatrix Lestrange
   Nymphadora Tonks

When we first meet Ginny Weasley, she is skittish and shy, but we later learn that that's only because she likes Harry. When she no longer has a crush on Harry, she becomes a strong, independent character who Harry dates.

1. Professor McGonagall
   Professor Hagrid
2. Professor Dumbledore
   Professor Snape

At first, it seems like Professor McGonagall is a mean person. Later, we learn that this isn't the case. She is strict, but she is fair, and she doesn't put up with any kind of shenanigans.

1. Delores Umbridge
   Kreacher
2. Bellatrix Lestrange
   Sybill Trelawney

Bellatrix Lastrange has a reputation for being absolutely insane, and when she breaks out of Hogwarts we learn that she lives up to that reputation. She dances and sings when she kills Sirius, but she's absolutely in love with Voldemort.

1. Peeves
   Fleur Delacour
2. Moaning Myrtle
   Pansy Parkinson

Ghosts exist in the wizarding world, and some of them can be helpful. When the main characters finally get Moaning Myrtle to settle down, she helps them figure out where the entrance to the Chamber of Secrets is.

1. Professor Dumbledore
   Professor Snape
2. Professor McGonagall
   Professor Trelawney

Professor Trelawney seemed a little off the wall for a while, but we soon learn why Dumbledore hired her ... it was for her own protection, as she was the one who told the prophecy about Voldemort and Harry.

1. Fleur Delacour
   Hedwig
2. Hermione Granger
   Rita Skeeter

In the books, we learn that Fleur Delacour has some Veela in her blood. The Veela is a human-like female creature that can attract men. Of course, this really doesn't translate well in the movies, so it was left out.

1. Grenwick
   Ollivander
2. Kilgrey
   Scamander

Garrick Ollivander is the wand maker everyone goes to in the Harry Potter series. If you didn't get this question right, don't worry, he is definitely difficult to identify when his eyebrows are missing.

1. Argus Filch
   Walder Frey
2. Professor Flitwick
   Dean Thomas

Yes, it is the same actor who played Walder Frey in the "Game of Thrones" series. However, in the Harry Potter series, he's a man who just wants to learn magic, as his entire family has magical powers, except him.

1. Percy Weasley
   Cornelius Fudge
2. Argus Filch
   Rita Skeeter

Rita Skeeter was a journalist who gave other journalists a bad name. She wanted nothing more than drama and adventure in her stories, and she would easily make it up if there was none to be found.

1. Myrtle
   Pansy Parkinson
2. Cho Chang
   Hannah Abbott

Cho Chang turned Harry down because Cedric Diggory asked her to the dance first. Of course, by the next book, Cho becomes Harry Potter's first kiss ever. He described it in the books as "wet."

1. Madam Hooch
   Madam Pasqual
2. Professor Trelawney
   Professor Dumbledore

While Madam Hooch was in the first movie, she seemed to disappear soon after. She did make it to a few chapters within the books, but in the end, her character seemed superfluous for the films.

1. Albus Dumbledore
   Arthur Weasley
2. Lucius Malfoy
   Cornelius Fudge

Cornelius Fudge is the kind of Minister of Magic who gives us pause when we look at our own leaders. He is in denial for a long time about Voldemort's return, giving the press the option to lie without sources about Harry's telling of the story.

1. Sirius Black
   Peter Pettigrew
2. Remus Lupin
   Regulus Black

We know him by many names: Scabbers, Peter and Wormtail. In the third movie, we learn that he is the one who betrayed Harry's parents, but before he can be punished, he escapes and finds Voldemort.

1. Petunia Potter
   Julianna Potter
2. Leslie Church
   Lily Potter

Whenever people talk to Harry about his parents, they tell him he has his mother's eyes. However, they also tell him about how smart and bright his mother was. It was a shame she died, but she saved Harry's life in doing so.

1. Pansy Parkinson
   Albus Dumbledore
2. Viktor Krum
   Quirinus Quirrell

Viktor Krum walked into Hogwarts a celebrity. He had participated in the Quidditch World Cup and then became a Triwizard Champion for his school. He may not have been the smartest contestant, but he performed well.

1. Natalie Malfoy
   Severus Malfoy
2. Narcissa Malfoy
   Julianna Malfoy

While you may think of the Malfoys as terrible people, Narcissa and Lucius deep down only care about keeping their child safe. We watch as Narcissa saves Harry's life by telling Voldemort he's dead once she learns that Draco is alive.

1. Arthur Weasley
   Voldemort
2. Crabbe
   Goyle

We all know and love Arthur Weasely as Harry's counterpart. He knows as much about the muggle world as Harry knows about the wizarding world at first. Additionally, Arthur is just as interested in muggles as Harry is in witches and wizards.

1. Argus Filch
   Dudley Dursley
2. Alastor Moody
   Professor Quirrell

It's unfortunate that we didn't get to see the real Mad Eye Moody for very long on screen in the Harry Potter movies. That is, if you remember that the real Moody was replaced by Barty Crouch Jr. who drank polyjuice potion to trick Harry.

1. Susan Bones
   Bathilda Bagshot
2. Lavender Brown
   Katie Bell

Lavender Brown had a brief romance with Ronald Weasley, but he had his eyes on another. She was a Gryffindor student who joined Dumbledore's army when Defense Against the Dark Arts was watered down for the students.

1. Cedric Diggory
   Viktor Krum
2. Fleur Delacour
   Harry Potter

Cedric Diggory made his first appearance in the movies in "The Goblet of Fire;" however, he was in the books before that. He is the one Voldemort killed as soon as he came back into his body.

1. Barty Crouch Sr.
   Barty Crouch Jr.
2. Dedalus Diggle
   Frank Bryce

He was the first one to recognize that Professor Moody wasn't Professor Moody, but his son, Barty Crouch Jr. This ended up getting him killed, which was one of the first crazy deaths in the series.

1. Filius Flitwick
   Percey Weasley
2. Seamus Finnigan
   Neville Longbottom

We first meet Seamus as a baby-faced boy who accidentally blows things up, but then he becomes a jerk who doesn't believe Harry until it's too late. He ends up saving Hogwarts by blowing up a bridge.

1. Gregory Goyle
   Fenrir Greyback
2. Igor Karkaroff
   Lee Jordan

While he doesn't get a whole lot of character development, Lee Jordan is actually a pretty great character. His wit and inability to hide the fact that he hates Slytherin make him one of the best Quidditch announcers around.

1. Lee Jordan
   Oliver Wood
2. Myrtle Warren
   Bill Weasley

In the first book and movie, Oliver Wood is the captain of the Gryffindor House Quidditch team. He teaches Harry (and the audience) all about how the impossibly intricate game of Quidditch works.

1. Ginny Weasley
   Sarah Weasley
2. Molly Weasley
   Narcissa Weasley

Molly Weasley has a lot of children, and most of them are boys. To be the mom of five wizards and one witch is no easy feat. This turns her into a strong woman with a strong will, who is very protective.

1. Marge Dursley
   Petunia Dursley
2. Dawlish
   Bartemius Crouch Jr.

We hear about her in the first movie ("Marge is ill"), but we don't meet her until the third movie, when Harry turns her into a hot air balloon, because she speculates on why Harry is such a bad seed.

1. Percy Weasley
   Kingsley Shacklebolt
2. Lee Jordan
   Alastor Moody

At first, Kingsley Shacklebolt seems like a scary dude, but we soon learn that he is pretty laid back, and he is one heck of an auror. He does his job well, and he's a member of the Order of the Phoenix.

1. Lee Jordan
   Viktor Krum
2. Gilderoy Lockhart
   Severus Snape

We all know someone like Gilderoy Lockhart. He's the kind of guy who lives on one moment ... a moment he probably stole from someone else, because he's too scared to take life on by himself.

1. Nymphadora Tonks
   Molly Weasley
2. Madam Pomfrey
   Kingsley Shacklebolt

From Madam Pomfrey, we learn that healing broken bones is no big deal, but when it comes to growing bones back (which is possible in the wizarding world), that is some tricky (and sickly) business.